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Flights from Seoul to Illinois

Flight deals from Seoul to Illinois

Looking for cheap tickets from Seoul to Illinois, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.
Chicago.R 10,018 per passenger.Departing Mon, 15 Sep, returning Sun, 28 Sep.Return flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Incheon International on Mon, 15 Sep, arriving in Chicago O'Hare International.Inbound indirect flight with Hawaiian Airlines, departs from Chicago O'Hare International on Sun, 28 Sep, arriving in Incheon International.Price includes taxes and charges.From R 10,018, select.
Champaign.R 27,045 per passenger.Departing Fri, 24 Oct, returning Wed, 29 Oct.Return flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Incheon International on Fri, 24 Oct, arriving in Champaign.Inbound indirect flight with Qatar Airways, departs from Champaign on Wed, 29 Oct, arriving in Incheon International.Price includes taxes and charges.From R 27,045, select.
Bloomington.R 28,176 per passenger.Departing Wed, 1 Oct, returning Fri, 31 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Incheon International on Wed, 1 Oct, arriving in Central Illinois Regional.Inbound indirect flight with Delta, departs from Central Illinois Regional on Fri, 31 Oct, arriving in Incheon International.Price includes taxes and charges.From R 28,176, select.
Moline.R 30,957 per passenger.Departing Fri, 5 Sep, returning Sat, 30 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Incheon International on Fri, 5 Sep, arriving in Moline.Inbound indirect flight with Delta, departs from Moline on Sat, 30 May, arriving in Incheon International.Price includes taxes and charges.From R 30,957, select.
Peoria.R 35,475 per passenger.Departing Wed, 10 Sep, returning Mon, 29 Sep.Return flight with Emirates.Outbound indirect flight with Emirates, departs from Incheon International on Wed, 10 Sep, arriving in Greater Peoria.Inbound indirect flight with Emirates, departs from Greater Peoria on Mon, 29 Sep, arriving in Incheon International.Price includes taxes and charges.From R 35,475, select.

Flying from Seoul to Illinois

Arm yourself with these facts on the fly.
Cheapest flight foundR 7,654, Chicago
Cheapest month to flySeptember
Average flight time12 hrs, 55 mins
Cheapest airport to fly fromIncheon International
Most popular airlineDelta

Frequently asked questions

We looked at all of the upcoming return flights from Seoul to Illinois we could find over the next 12 months. It looks like R 10,043 is the best price. This is good, compared to the average Illinois ticket price of R 26,334.
The cheapest month to fly from Seoul to Champaign Airport is usually October. The cheapest month to fly from Seoul to Chicago O'Hare International Airport is usually September. The cheapest month to fly from Seoul to Central Illinois Regional Airport is usually October. And the cheapest month to fly from Seoul to Moline Airport is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to Illinois on Monday, 15 September 2025.
Incheon International Airport offers direct flights to Illinois.
If you're flying from Seoul, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago O'Hare International.
The average flight time between Seoul and Illinois is 12 hours and 55 minutes.